EP0261546B1 - Fluide transparent pour usinage par décharge électrique - Google Patents

Fluide transparent pour usinage par décharge électrique Download PDF

Info

Publication number
EP0261546B1
EP0261546B1 EP87113417A EP87113417A EP0261546B1 EP 0261546 B1 EP0261546 B1 EP 0261546B1 EP 87113417 A EP87113417 A EP 87113417A EP 87113417 A EP87113417 A EP 87113417A EP 0261546 B1 EP0261546 B1 EP 0261546B1
Authority
EP
European Patent Office
Prior art keywords
surface active
oil
machining fluid
discharge machining
electrical discharge
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP87113417A
Other languages
German (de)
English (en)
Other versions
EP0261546A3 (en
EP0261546A2 (fr
Inventor
Kouji Imai
Isoo Suzuki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idemitsu Kosan Co Ltd
Original Assignee
Idemitsu Kosan Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Idemitsu Kosan Co Ltd filed Critical Idemitsu Kosan Co Ltd
Publication of EP0261546A2 publication Critical patent/EP0261546A2/fr
Publication of EP0261546A3 publication Critical patent/EP0261546A3/en
Application granted granted Critical
Publication of EP0261546B1 publication Critical patent/EP0261546B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M125/00—Lubricating compositions characterised by the additive being an inorganic material
    • C10M125/14—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H7/00—Processes or apparatus applicable to both electrical discharge machining and electrochemical machining
    • B23H7/34—Working media
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23H—WORKING OF METAL BY THE ACTION OF A HIGH CONCENTRATION OF ELECTRIC CURRENT ON A WORKPIECE USING AN ELECTRODE WHICH TAKES THE PLACE OF A TOOL; SUCH WORKING COMBINED WITH OTHER FORMS OF WORKING OF METAL
    • B23H1/00—Electrical discharge machining, i.e. removing metal with a series of rapidly recurring electrical discharges between an electrode and a workpiece in the presence of a fluid dielectric
    • B23H1/08—Working media
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M133/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen
    • C10M133/02—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing nitrogen having a carbon chain of less than 30 atoms
    • C10M133/04—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M133/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M133/10—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms cycloaliphatic
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/28—Polyoxyalkylenes of alkylene oxides containing 2 carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M145/00—Lubricating compositions characterised by the additive being a macromolecular compound containing oxygen
    • C10M145/18—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M145/24—Polyethers
    • C10M145/26—Polyoxyalkylenes
    • C10M145/36—Polyoxyalkylenes etherified
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M173/00—Lubricating compositions containing more than 10% water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
    • C10M2201/02—Water
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/104—Polyethers, i.e. containing di- or higher polyoxyalkylene groups of alkylene oxides containing two carbon atoms only
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
    • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
    • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
    • C10M2209/108—Polyethers, i.e. containing di- or higher polyoxyalkylene groups etherified
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
    • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
    • C10M2215/044—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms having cycloaliphatic groups
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/16—Dielectric; Insulating oil or insulators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/01—Emulsions, colloids, or micelles

Definitions

  • Subject matter of the present invention is an electrical discharge machining fluid comprising an oil, water and a surface active agent and a method for the preparation for said fluid which is used for electrical machining using an electrical discharge system, such as electrical discharge machining, wire cut electrical discharge machining, etc., which requires less measures for flame prevention even when it is used in a large amount because of its low flammability, which is superior in characteristics as a machining fluid because of less increase in viscosity and less decrease in specific electric resistance and which has a superior operability because of excellent transparency.
  • an electrical discharge machining fluid comprising an oil, water and a surface active agent and a method for the preparation for said fluid which is used for electrical machining using an electrical discharge system, such as electrical discharge machining, wire cut electrical discharge machining, etc.
  • hydrocarbon oils high in insulation have been used as machining fluids for electrical machining.
  • hydrocarbon oils are generally high in flash point and so sufficient preventive measures for flaming must be adopted at use and especially when they are used in a large amount, considerable costs and labors are required for adoption of the measures.
  • JP-A-58149134 discloses an electrospark machining oil comprising an oil, 15 to 25 % by wt. of water and, as an emulsifier, a fatty acid polyhydric alcohol ester of the W/O-nonionic type.
  • said electrical machining fluids are W/O emulsions
  • the specific electric resistance reaches nearly 0 and discharge machining becomes difficult and when the machining is forcibly made, the applied voltage must be increased, resulting in further acceleration of shortening of the life of the electrode due to an increase in load applied to the electrode.
  • they are emulsions, their flash point is low and there are many possibilities of flaming. Besides, they are high in viscosity and removal of cutting dust-like material and carbon particles which get mixed in during machining is difficult.
  • water is continuous phase and electrical discharge machining is impossible, though electrolytic machining is possible.
  • the object of this invention is to provide a transparent electrical discharge machining fluid of the above noted type, which is free from the above problems and is high in flash point to make it possible to employ small equipment for prevention of flaming and for extinction, is less prone to the reduction of specific electric resistance to make it possible to remove the problems such as reduction of machining speed, roughening of machined surface and exhaustion of electrodes and besides is excellent in workability.
  • the transparent electrical discharge machining fluid is obtained by adding a surface active agent to a mixture of a mineral oil and/or a synthetic oil and a specific proportion of water.
  • Subject matter of the present invention therefore is a transparent electrical discharge machining solution which is characterized in being transparent, having a kinetic viscosity of 20 mm 2 /s(cSt) or less at 40 ° C and comprising
  • Said mineral oil includes, for example, paraffinic oils and naphthenic oils having a kinetic viscosity at 40 ° C of 10 mm 2 /s or less, preferably 8 mm 2 /s or less.
  • paraffinic oils and naphthenic oils are obtained by refining of petroleum distilate.
  • light oils such as kerosine, gas oil, etc. and general lubricating oils such as spindle oil, machine oil, etc. may also be used alone or in admixture as mineral oils in this invention. Light mineral oils are preferred in this invention.
  • synthetic oils mention may be made of, for example, hydrocarbon synthetic oils, synthetic ester oils such as dibasic acid esters, silicate esters, phosphate esters, neopentylpolyol esters, etc., synthetic polyglycol oils, synthetic polyphenyl ether oils, synthetic silicone oils, etc. which have a kinetic viscosity of 10 mm 2 /s or less, preferably 8 mm 2 /s or less at 40 ° C.
  • synthetic ester oils such as dibasic acid esters, silicate esters, phosphate esters, neopentylpolyol esters, etc.
  • synthetic polyglycol oils synthetic polyphenyl ether oils
  • synthetic silicone oils etc. which have a kinetic viscosity of 10 mm 2 /s or less, preferably 8 mm 2 /s or less at 40 ° C.
  • said mineral oil and said synthetic oil may be used alone or in combination of two or more.
  • the mineral oil and/or the synthetic oil desirably have a kinetic viscosity at 40* C of 10 mm 2 /s or less, preferably 8 mm 2 /s or less, more preferably 1.5-5 mm 2 /s and have a flash point of 80-160 0 C.
  • mineral oil and synthetic oil As such mineral oil and synthetic oil, light mineral oils having a kinetic viscosity at 40* C of 1.6 mm 2 /s, 2.1 mm 2 /s, 3.5 mm 2 /s, 4.5 mm 2 /s or the like and a-olefin oligomers having a kinetic viscosity at 40 ° C of 2.5 mm 2 /s, 3.5 mm 2 /s or the like are commercially available.
  • viscosity of the transparent electrical discharge machining fluid of this invention increases and the cutting dust-like material produced during machining do not settle, but remain on the worked surface, resulting in bad effects on the machined surface.
  • distilled water which has been fully purified is preferred, but may contain a slight amount of impurities such as tap water as far as it does not hinder attainment of the object of this invention.
  • mixing ratio of said mineral oil and/or synthetic oil and water is 95-60%, preferably 93-75% by weight of the mineral oil and/or synthetic oil and 5-40%, preferably 7-25% by weight of water.
  • anionic surface active agents such as carboxylates, e.g., fatty acid and resin acid soaps, N-acylcarboxylates, ether carboxylate, etc., sulfonates, e.g., alkylsulfonates, sulfosuccinates, ester sulfonates, alkylaryl and alkylnaphthalenesulfonates, etc., sulfate ester salts, e.g., sulfated oils, ester sulfates, alkylsulfates, ethersulfates, alkylarylether sulfates, amidosulfates, etc.
  • carboxylates e.g., fatty acid and resin acid soaps, N-acylcarboxylates, ether carboxylate, etc.
  • sulfonates e.g., alkylsulfonates, sulfosuccinates, ester sulfonates
  • phosphates e.g., alkylphosphates, etherphosphates, alkylaryletherphosphates, amidophosphates, formalin condensation sulfonates; cationic surface active agents such as aliphatic amine salts and quaternary ammonium salts thereof, e.g., primary amine salts, secondary amine salts, tertiary amine salts, quaternary ammonium salts, hydroxyammonium salts, etherammonium salts, etc., aromatic quaternary ammonium salts, e.g., benzalkonium salts, benzethonium salts, etc., pyridinium salts, im- idazolonium salts, etc., betaines such as carboxybetaines, sulfobetaines, etc.; aminocarboxylates, imidazoline derivatives, etc.; nonionic surface active agents such as ethers, e.g., alkyl
  • nitrogen containing type surface active agents e.g., fatty acid alkanol amides, polyoxyethylene fatty acid amides, esters of alkanol amines, polyoxyethylenealkylamines, amine oxides, etc.; fluorine surface active agents; polypeptide derivatives; natural surface active agents, etc.
  • Said surface active agents may be used alone or in combination of two or more. In this invention it is preferred for reduction of the amount of surface active agents to use them as a mixture of two or more.
  • nonionic surface active agent When two or more surface active agents are used in combination, preferred is used of nonionic surface active agent and anionic surface active agent in combination.
  • preferred nonionic surface active agents are polyoxyethylenenonylphenyl ether, polyoxyethyleneoctylphenyl ether, polyoxyethylenesorbitan monooleate, etc.
  • preferred anionic surface active agents are sodium dialkylsulfosuccinates, sodium alkylnaphthalenesulfonates, alkanol amine salts of fatty acids, etc.
  • the electrical discharge machining fluid is transparent fluid prepared by adding, to a mixture of said mineral oil and/or said synthetic oil and said water, said surface active agent in an amount of 5-40% by weight of said mixture to solubilize water in said mineral oil and/or said synthetic oil and this transparent fluid has a kinetic viscosity of 20 mm 2 /s or less.
  • the amount of said surface active agent is less than 5% by weight of said mixture, said mixture is not solubilized and this is not desirable for attaining the object of this invention.
  • the amount is more than 40% by weight, the kinetic viscosity of the solubilized fluid becomes too high and this is not desired.
  • the transparent electrical discharge machining fluid of this invention may further contain antioxidants and rust proofing agents in addition to said mineral oil and/or synthetic oil, water and surface active agent as far as attainment of the object of this invention is not hindered.
  • transparent electrical discharge machining solution is reusable by removing cutting dust-like material in the fluid, for example, by a filter.
  • a base oil (a light mineral oil having a kinetic viscosity of 2.1 mm 2 /s at 40 C) and water were mixed at the ratios shown in Table 1.
  • a base oil a light mineral oil having a kinetic viscosity of 2.1 mm 2 /s at 40 C
  • water were mixed at the ratios shown in Table 1.
  • a nonionic surface active agent polyoxyethylene nonylphenyl ether
  • an anionic surface active agent sodium alkylnaphthalenesulfonate

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Electrochemistry (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Lubricants (AREA)

Claims (6)

1. Fluide pour usinage par décharge électrique comprenant une huile, de l'eau et un agent tensioactif, caractérisé en ce qu'il est transparent, a une viscosité cinétique de 20mm2/s (cSt) ou moins à 40 ° C et comprenant
A) un mélange de
a) 95 à 60 % en poids d'au moins une huile choisie parmi le groupe constitué des huiles minérales et des huiles synthétiques et
b) 5 à 40 % en poids d'eau, et
B) 5 à 40 % en poids par rapport audit mélange A d'un mélange d'un agent tensioactif non ionique et d'un agent tensioactif anionique.
2. Fluide pour usinage selon la revendication 1, dans lequel ladite huile minérale a une viscosité cinétique de 10mm2/s (cSt) ou moins à 40°C.
3. Fluide pour usinage selon la revendication 1, dans lequel ladite huile minérale est une huile minérale légère.
4. Fluide pour usinage selon la revendication 1, dans lequel ladite huile synthétique a une viscosité cinétique de 10mm2/s (cSt) ou moins à 40 ° C.
5. Fluide pour usinage selon la revendication 1, dans lequel ledit agent tensioactif est une combinaison de nonylphényléther de polyoxyéthylène et de sulfonate d'alkylnaphtalène de sodium.
6. Procédé de préparation de fluide pour usinage par décharge électrique selon la revendication 1, caractérisé par :
A - Le mélange
a) de 95 à 60 % en poids d'au moins une huile choisie parmi le groupe constitué des huiles minérales et des huiles synthétiques et
b) 5 à 40 % en poids d'eau puis
B - Le mélange dudit mélange A avec 5 à 40 % en poids d'un mélange d'un agent tensioactif non ionique et d'un agent tensioactif anionique.
EP87113417A 1986-09-16 1987-09-14 Fluide transparent pour usinage par décharge électrique Expired - Lifetime EP0261546B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP218720/86 1986-09-16
JP61218720A JP2511423B2 (ja) 1986-09-16 1986-09-16 透明放電加工液

Publications (3)

Publication Number Publication Date
EP0261546A2 EP0261546A2 (fr) 1988-03-30
EP0261546A3 EP0261546A3 (en) 1988-11-17
EP0261546B1 true EP0261546B1 (fr) 1992-04-22

Family

ID=16724381

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87113417A Expired - Lifetime EP0261546B1 (fr) 1986-09-16 1987-09-14 Fluide transparent pour usinage par décharge électrique

Country Status (5)

Country Link
US (1) US4849122A (fr)
EP (1) EP0261546B1 (fr)
JP (1) JP2511423B2 (fr)
KR (1) KR910002169B1 (fr)
DE (1) DE3778467D1 (fr)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5081333A (en) * 1989-03-17 1992-01-14 Mitsubishi Denki Kabushiki Kaisha Electric discharge machining fluid with a fatty acid amide additive for rust inhibition
US5032307A (en) * 1990-04-11 1991-07-16 Lord Corporation Surfactant-based electrorheological materials
DE4132879C2 (de) * 1991-10-03 1994-06-23 Oel Held Gmbh Dielektrische Flüssigkeit für die Metallbearbeitung durch Funkenerosion
US5773782A (en) * 1993-12-15 1998-06-30 Oel-Held Gmbh Method and apparatus for the machining of metal by spark erosion
US6107456A (en) 1998-08-31 2000-08-22 Arizona Chemical Corporation Method for separating sterols from tall oil
US6271183B1 (en) * 2000-02-25 2001-08-07 Exxonmobil Research And Engineering Company Emulsifiable cutting oil that minimizes graphite paste formation when cutting graphite containing metals
JP2003260618A (ja) * 2002-03-06 2003-09-16 Sankyo Seiki Mfg Co Ltd 電解加工方法、及び電解加工装置
ITTO20040456A1 (it) * 2004-07-06 2004-10-06 Flavio Rabino Fluidi dielettrici ad elevato rendimento, particolarmente idonei per macchine utensili per elettroerosione
KR100696064B1 (ko) * 2006-07-26 2007-03-16 이대영 와이어 커팅기용 증류수 자동공급시스템
JP5044350B2 (ja) * 2006-09-28 2012-10-10 出光興産株式会社 透明難燃性放電加工液
CN102794515A (zh) * 2011-05-24 2012-11-28 昆山市瑞捷精密模具有限公司 短电弧加工工作液
JP6190826B2 (ja) * 2013-01-30 2017-08-30 Ｊｘｔｇエネルギー株式会社 さび止め油組成物
CN103242946B (zh) * 2013-05-06 2014-10-08 长沙好的机电科技有限公司 一种机床工作液的配方及其配制工艺
CN103710075B (zh) * 2013-10-09 2016-04-13 中国石油化工股份有限公司 乳化型线切割工作液及其用途
CN103555410B (zh) * 2013-11-21 2014-11-12 广州粤晖金属机械防护技术有限公司 一种汽车连杆用水基防锈磨削冷却液及其制备方法和用途
CN103666727A (zh) * 2013-12-10 2014-03-26 广州市联诺化工科技有限公司 一种有效保护机床油漆的半合成环保切削液及其制备方法
CN103865622B (zh) * 2014-03-11 2015-08-19 东莞市安美润滑科技有限公司 全合成水性不锈钢切削液、制备方法及其使用方法
CN104450038A (zh) * 2014-11-05 2015-03-25 无锡贺邦金属制品有限公司 一种铁加工油
CN104450039A (zh) * 2014-11-05 2015-03-25 无锡贺邦金属制品有限公司 一种不锈钢加工油

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117929A (en) * 1958-08-08 1964-01-14 Texaco Inc Transparent dispersion lubricants
US2996602A (en) * 1959-01-26 1961-08-15 Elox Corp Michigan Edm coolant
FR1358873A (fr) * 1962-06-14 1964-04-17 Cincinnati Milling Machine Co Procédé d'usinage par décharge électrique et fluides ad hoc
US4013863A (en) * 1973-02-07 1977-03-22 U.S. Philips Corporation Method of finishing a workpiece of a non-conducting material, particularly diamond, by means of spark erosion
US4336147A (en) * 1980-03-24 1982-06-22 Chevron Research Company Borate-containing water-in-oil microemulsion fluid
US4371447A (en) * 1981-07-06 1983-02-01 Standard Oil Company Low viscosity water-in-oil microemulsions
JPS5882629A (ja) * 1981-11-10 1983-05-18 Mitsubishi Electric Corp 放電加工装置
JPS58149134A (ja) * 1982-02-24 1983-09-05 Sodeitsuku:Kk 放電加工方法および装置
JPS58181522A (ja) * 1982-03-17 1983-10-24 Sodeitsuku:Kk 放電加工液
JPS6059314B2 (ja) * 1982-04-03 1985-12-24 株式会社ソデイツク 放電加工液
JPS6071120A (ja) * 1983-09-16 1985-04-23 Mitsubishi Electric Corp 放電加工液改良剤
JPS614623A (ja) * 1984-06-20 1986-01-10 Hitachi Seiko Ltd 放電加工液

Also Published As

Publication number Publication date
US4849122A (en) 1989-07-18
JPS6374523A (ja) 1988-04-05
DE3778467D1 (de) 1992-05-27
KR910002169B1 (ko) 1991-04-06
EP0261546A3 (en) 1988-11-17
KR880003694A (ko) 1988-05-28
EP0261546A2 (fr) 1988-03-30
JP2511423B2 (ja) 1996-06-26

Similar Documents

Publication Publication Date Title
EP0261546B1 (fr) Fluide transparent pour usinage par décharge électrique
US4654155A (en) Microemulsion lubricant
DE929208C (de) Waessrige Emulsion, insbesondere fuer die Metallbearbeitung
CN107603724B (zh) 一种石墨烯增效无需排放环保型水基切削液及其制备方法
US4758359A (en) Aqueous metal working lubricant containing a complex phosphate ester
US11525102B2 (en) Metal-working fluid compositions and methods for making
CN108003994A (zh) 一种环保型极压切削油及其制备方法和应用
DE1719036B1 (de) Waessrige Schmiermittelzubereitungen
CN111518603A (zh) 一种水性全合成蓝宝石玻璃切割液及其制备方法
CN1100130C (zh) 一种用于电触点的润滑脂
WO1998050139A1 (fr) Melange de tensioactifs
GB1599714A (en) High production rate metal shaping process
US4005304A (en) Electrical discharge machining process with fluid containing a cationic organic surfactant
US6689722B1 (en) Method of manufacturing environmentally safe lubricating composition
DE2907863C2 (de) Metallbearbeitungsemulsion
US2466647A (en) Lubricating oil composition
CN1057478A (zh) 金属切削液
CN115851358A (zh) 一种环保不锈钢水性切削液及其制备方法和应用
EP0392329B1 (fr) Composition à huile pour le traitement e métal
CN114410371A (zh) 一种具有多次沉降性能的水基全合成磨削液及其制备方法
CN109365931B (zh) 电火花成形加工油包水型纳米工作液
EP0112053A1 (fr) Composition nettoyante à base d'huile minérale
GB2048934A (en) Lubricating oil compositions and methods of manufacturing and supplying them
DE3512351C2 (de) Antikorrodierende Schmiermittelzusammensetzungen zur Behandlung von Metallplatten
EP1848525A1 (fr) Melanges d'emulsifiants de sulfonate de sodium synthetiques et naturels

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB IT SE

17P Request for examination filed

Effective date: 19880325

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB IT SE

17Q First examination report despatched

Effective date: 19900622

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: IDEMITSU KOSAN COMPANY LIMITED

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE FR GB IT SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRE;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED.SCRIBED TIME-LIMIT

Effective date: 19920422

Ref country code: SE

Effective date: 19920422

Ref country code: FR

Effective date: 19920422

REF Corresponds to:

Ref document number: 3778467

Country of ref document: DE

Date of ref document: 19920527

EN Fr: translation not filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 19930906

Year of fee payment: 7

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 19930908

Year of fee payment: 7

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19940914

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 19940914

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Effective date: 19950601